The Inputs and Outputs pane displays a list of all loaded plugins. Note that the item icons indicate whether the item is an input plugin, an output plugin, or both. Right clicking on an item allows you to enable/disable a plugin, configure a plugin, or display information about the plugin properties.
A typical plugin properties dialog displays the plugin version as well as general information about the plugin.
A typical plugin configuration dialog allows you to edit global settings for a plugin. Settings that are not specific to a particular rule, but rather apply to the all plugin functions are displayed here.